InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which chemical component is added with petrol in automobiles/automotive? (a) Ethanol (b) Methanol (c) Propanol (d) Butanol |
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Answer» The answer is (a) Ethanol |
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| 2. |
Biogas production from waste biomass with the help of methanogenic bacteria isA. One step processB. Two step processC. Theree step processD. Multistep process |
| Answer» Correct Answer - C | |
| 3. |
Calorific value of biogas isA. `10-20 mj//m^3`B. `23-28 mj//m^3`C. `35-40 mj//m^3`D. `5-10 mj//m^3` |
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Answer» Correct Answer - B Calorific value of biogas is `4.429 Kcal//m^3` or `23-28 mj//m^3` , when its `CH_4` content is 50%. |
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| 4. |
Social forestry isA. Planting of different kinds of trees in the same areaB. Greening of hills with the efforts of common menC. Raising trees on common village lands and othe rvacant ares for fodder minor tmber and fire woodD. Planting of trees along river embankments |
| Answer» Correct Answer - C | |
| 5. |
Calorific value of biogas isA. `1-2 MJ//m^(3)`B. `23-28 MJ//m^(3)`C. `11-15 MJ//m^(3)`D. `100-120 MJ//m^(3)` |
| Answer» Correct Answer - B | |
| 6. |
Biogas containsA. 50-70% MethaneB. 30-40% MethaneC. Traces of MethaneD. 80-95% Methane |
| Answer» Correct Answer - A | |
| 7. |
Biogas can be a good substitute for Or In developing countries , the heaviest demand on forests is forA. Fuel woodB. Petroleum and oilC. CoalD. Charcoal |
| Answer» Correct Answer - A | |
| 8. |
Which one is not a petrocrop?A. Weuphorbia lathyrusB. Helianthus annusC. Jatropha Hardwickis binataD. |
| Answer» Correct Answer - D | |
| 9. |
Energy crops areA. Sugarcane`//`Sugarbeet`, Potato and TomatoB. Sugarcane, Tpioca and CauliflowerC. Sugarcne, Potata and TapiocaD. Millets, Banana and Tomato |
| Answer» Correct Answer - C | |
| 10. |
Government of India is putting more stress on planting quick growing trees which yield better fodder and fuel.It is underA. AfforestationB. Forest conservationC. Social forestryD. All the above |
| Answer» Correct Answer - C | |
| 11. |
Group of bacteria used in biogas production isA. EubacteriaB. OrganotrophsC. MethanotrophsD. Methanogens |
| Answer» Correct Answer - D | |
| 12. |
Pyrolysis of wood yieldsA. AlcholholB. CharcoalC. Charcoal and wood gasD. Charcoal,wood gas tar and oil |
| Answer» Correct Answer - D | |
| 13. |
Propdcut obtained from which family can be alternative to liqud fuelA. AsclepiadaceaeB. LeguminosaeC. SolanaceaeD. Lilaiaceae |
| Answer» Correct Answer - A | |
| 14. |
Pyrolysis of wood is responsible for yieldingA. Presence of airB. Absence fo airC. Limited supply of airD. Both B andC |
| Answer» Correct Answer - B | |
| 15. |
Biogas containsA. `CH_(4)+CO+CO_(2)`B. `CH_(4)+CO_(2)+H_(2)`C. `CO+CO_(2)+H_(2)`D. `CO+CO_(2)+NO_(2)` |
| Answer» Correct Answer - B | |
| 16. |
Which should be used for production of biothanol ?A. BrassicaB. Zea maysC. JaytrophaD. Pongamia |
| Answer» Correct Answer - B | |
| 17. |
Which one yields more energy?A. Direct burining of cowdungB. Burning of biogas derived from cowdungC. Burning of manure derived from cowdungD. Burning of semidecayed cowdung |
| Answer» Correct Answer - A | |
| 18. |
pH favourable for fermaentation in biogas plant isA. `4-5`B. `5-6`C. `6.5-7.2`D. `7.6-8.4` |
| Answer» Correct Answer - C | |
| 19. |
Biogas plant is more usesful than burning of dung cakes becauseA. It is nonpollutantB. It yields manure as well as fuel gasC. It yields important biochemicalsD. Both A dn B |
| Answer» Correct Answer - D | |
| 20. |
Jatropha is aA. Biodiesel cropB. Biopetrol cropC. Fibre cropD. Food crop |
| Answer» Correct Answer - A | |
| 21. |
Biogas predominently comprisesA. `CH_(4) ,N_(2) andH_(2)`B. `CH_(4) and CO`C. `CH_(4) and CO_(2)`D. `CH_(4) andNO_(3)` |
| Answer» Correct Answer - C | |
| 22. |
Supply of oxygen to the biogas plant will haveA. Positive effectB. Negative effectC. No effectD. None of these |
| Answer» Correct Answer - B | |
| 23. |
Biodiesel is got fromA. Jatropha bilabaB. CedrusC. Jatropha curcasD. None of the above |
| Answer» Correct Answer - C | |
| 24. |
Organic compound not decomposed by microbes in biogas plants isA. Protein LigninB. LigninC. CelluloseD. Phospholipid |
| Answer» Correct Answer - B | |
| 25. |
Which is used in biodiesel productionA. Jatropha bilabaB. MaizeC. RiceD. Tectona |
| Answer» Correct Answer - A | |
| 26. |
Which is renewable ?A. WoodB. Organic remainsC. BiogasD. All the above |
| Answer» Correct Answer - D | |
| 27. |
Which one of the following is the correct order of conversion of waste materials during biogas formationA. Monomers `rarr` Polymers Methane organic acidsB. Organic acids Methane Polymers MonomersC. Methane organic acids Polyumers MonomersD. Polymers Monomers Organic acids Methane |
| Answer» Correct Answer - D | |
| 28. |
In biogas plant which group of bacteria is foundA. ArchaebacteriaB. MyxobacteriaC. CyanobacteriaD. Mycobacteria |
| Answer» Correct Answer - A | |
| 29. |
The order of bacteria acative in conversion of organic wates in to biogas isA. Hydrolytic `rarr` Acetogenic `rarr` MethanogenicB. Methanogenic `rarr` Acetogenic `rarr` HydrolyticC. Methanogenic `rarr` Hydrolytic `rarr` AcetogenicD. Acetogenic `rarr` Methanogenic rarr Hydrolytic |
| Answer» Correct Answer - A | |
| 30. |
Bacteria utilised in gobar gas plants areA. MethanougensB. NitrifyingC. AnmonifyingD. Denitrifying |
| Answer» Correct Answer - A | |
| 31. |
Bacteria involved in formation of gobar gas areA. Obligate aerobesB. Facultative anaerobesC. Obligate anaerobesD. Both B and C |
| Answer» Correct Answer - D | |
| 32. |
Latex containing plants are classifed on the basis ofA. Chemical compositionB. Morphological traitsC. Both aA and BD. None of the above |
| Answer» Correct Answer - C | |
| 33. |
Certain plants convert a substantial amount of photosynthate into latex.Most of them belong to familyA. EuphorbiaceaeB. MalvaceaeC. AsteraceaeD. Sterculieaceae |
| Answer» Correct Answer - A | |
| 34. |
Source of liquid hydrocarbons isA. EuphobiacaeB. AsclepiadaceaeC. ApocyananaceaeD. All the above |
| Answer» Correct Answer - D | |
| 35. |
Hydrocarbons were first isolated from plant latex byA. KrebsB. CalvinC. Walksman `D. Crystal et al |
| Answer» Correct Answer - B | |
| 36. |
Aquatic fern which is an excellent biofertilizerA. SalviniaB. AzollaC. MarsileaD. Pteridium |
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Answer» Correct Answer - B Azolla pinnata (aquatic fern) is a symbiotic nitrogen fixing cyanobacteria which is inoculated in rice fields in south-eastern Asia, and found to increase yield upto 50%. |
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| 37. |
Assertion: Bioenergy is the energy available from biological sources. Reason : Fossil fuels are examples of bioenergy.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If the assertion and reason both are false. |
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Answer» Correct Answer - C Bioenergy is the energy available from biological sources, both living and their immediate remains eg. wood, gobar gas. It does not include fossil fuels (coal, petroleum, natural gas) etc. |
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| 38. |
Petroleum yilding plants belong toA. EuphorbiaceaeB. ApocynaceaeC. AsclepiadaceaeD. All of the above |
| Answer» Correct Answer - D | |
| 39. |
Raising of crops for the production of ethanol is known asA. Energy croppingB. Energy plantationC. Agro-technologyD. Biomass production |
| Answer» Correct Answer - A | |
| 40. |
One of the country where alchol has been very successfully used as motor fuel isA. U.S.AB. BrazilC. JapanD. Germany |
| Answer» Correct Answer - B | |
| 41. |
Energy plantation isA. Growing starch/surgar rich plantsB. Growing latex rich plantsC. Growing fule wood treesD. Growing fruit plants |
| Answer» Correct Answer - C | |
| 42. |
Fuel wood isA. Renewable source of energyB. Source of alcoholC. Source of biogasD. Source of petroleum gas |
| Answer» Correct Answer - A | |
| 43. |
Temperature suitable for biogas production isA. `36^(@)-38^(@) C`B. `20^(@)-25^(@) C`C. `30^(@)-35^(@) C`D. `40^(@)-44^(@) C` |
| Answer» Correct Answer - A | |
| 44. |
Fuel wood isA. Renewable osurce of energyB. Souce of alcholC. Source of biogasD. Sources of petroleum gas |
| Answer» Correct Answer - A | |
| 45. |
The process that provides both energy and manure isA. Burning of fuel woodB. Pyrolysis of woodC. Gasification of wood and wood shavingsD. Biogas formation |
| Answer» Correct Answer - D | |
| 46. |
Cow dung is appropriately used asA. ManureB. FuelC. MedicineD. Building material |
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Answer» Correct Answer - A Manure is a semi-decayed organic matter which is added to the soil in order to maintain its fertility, crumb structure, aeration and hydration capacities, e.g., dung, farm refuse, rotten vegetable matter etc. |
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| 47. |
Methane content of biogas isA. 0.4B. 20-3C. 50-70%D. 10-20% |
| Answer» Correct Answer - C | |
| 48. |
Aquatic plant used in bioigas generation isA. EichhorinaB. TyphaC. PtotamogetonD. Vallisneria |
| Answer» Correct Answer - A | |
| 49. |
The commonest source of bienergy isA. Gobar gasB. CharcoalC. Fuel woodD. Wood gas |
| Answer» Correct Answer - C | |
| 50. |
Which one is used in biogas generation ?A. RhizobiumB. MethanobacteriumC. AgrobacteriumD. Azotobacter |
| Answer» Correct Answer - B | |